If we want the network to grow we are going to need to produce a gateway that ALL can use (open source) and we can not regulate what sites or stores use it.
If you want to keep this project small, then limit how gateways can be used.
People creating storefronts are going to use PRV for profit, by making money selling merchandise, you pay with PRV. They profit.
I do not want to limit website owners that want to integrate a gateway for PRV network . By doing that, we are going to limit the use of it and expansion of the network.
My take, as long as its legal, put ads on your site, sell stuff using PRV as the gateway payment do whatever. IT ALL helps increase awareness, transactions and expansion of the network.
Besides, unless you are contributing to the facet and payouts, they have to be covered somehow unless you expect the owner to pay it all out of their pockets. I know he asked for donations to support it, but ads do the same thing and he doesn’t have to beg for people to help.